IFNG and Ewing sarcoma: The NK-92mi production of IFN-γ was specifically stimulated by the use of supernatant from hu-IL-12 transduced osteosarcoma (143B) (p = 0.028675), Ewing sarcoma (A673) (p = 0.032811), and rhabdomyosarcoma (RD) (p = 0.042908) cells (Fig. 2b).